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Test Code IGG IGG, LAb718



Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: Green-top (lithium heparin) tube

Acceptable: Gold-top serum gel tube or plain red-top tube

Specimen Volume: 0.1 mL of plasma or serum

Stability: Separated specimens should be analyzed immediately or kept at 2 – 8 °C

                and analyzed within 7 days. For longer storage, samples may be frozen

                at -20 °C for up to 3 months.


Reference Values

0 days-4 months: 141-930 mg/dL
5-8 months: 250-1,190 mg/dL
9-11 months: 320-1,250 mg/dL
1-3 years: 400-1,250 mg/dL
4-6 years: 560-1,307 mg/dL
7-9 years: 598-1,379 mg/dL
10-12 years: 638-1,453 mg/dL
13-15 years: 680-1,531 mg/dL
16-17 years: 724-1,611 mg/dL
≥18 years: 700-1,600 mg/dL

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding


Useful For

Quantitative determination of the immunoglobulins can provide important information on the humoral immune status.